Arrangement structure of viaduct deck system

The utility model relates to the technical field of bridge construction, in particular to a viaduct bridge deck system arrangement structure which is characterized by comprising a bridge deck pavement layer arranged along the direction of a viaduct along the viaduct and sidewalk surface layers arranged on the two sides of the bridge deck pavement layer. The bridge deck pavement layer is composed of a reinforced concrete layer, a waterproof layer, a medium grain type asphalt concrete layer and a fine grain type modified asphalt concrete layer which are sequentially stacked from bottom to top, and the waterproof layer is sprayed on the surface of the reinforced concrete layer. The utility model has the advantages that the compressive strength, the flatness and the service life of the viaduct bridge deck system can be effectively improved, and the viaduct bridge deck system can be widely applied to the bridge deck construction of various viaducts; the structure is simple, reasonable, convenient to construct and